Francis Marion Hamilton (1839 - May 2, 1914) was mayor of Ann Arbor from 1905 to 1907. He was an 1869 graduate of the University of Michigan.

He willed the city of Ann Arbor $1,000 for the purpose of erecting a drinking fountain, which was dedicated at the 1919 Commencement ceremonies at the University of Michigan. The Francis Hamilton Memorial Fountain is at North University at State Street.

Hamilton was a real estate developer who built Hamilton Place and many houses on William St. and Fifth Ave. as well.